WO2011155812A1 - Système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur - Google Patents

Système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur Download PDF

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Publication number
WO2011155812A1
WO2011155812A1 PCT/MX2010/000052 MX2010000052W WO2011155812A1 WO 2011155812 A1 WO2011155812 A1 WO 2011155812A1 MX 2010000052 W MX2010000052 W MX 2010000052W WO 2011155812 A1 WO2011155812 A1 WO 2011155812A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
television
receiving unit
video signal
video
Prior art date
Application number
PCT/MX2010/000052
Other languages
English (en)
Spanish (es)
Inventor
Héctor Vicente Francisco LEAÑO ACEVES
Eric Michel Gonzalez
Original Assignee
Leano Aceves Hector Vicente Francisco
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leano Aceves Hector Vicente Francisco filed Critical Leano Aceves Hector Vicente Francisco
Priority to PCT/MX2010/000052 priority Critical patent/WO2011155812A1/fr
Priority to US13/261,368 priority patent/US20120293720A1/en
Publication of WO2011155812A1 publication Critical patent/WO2011155812A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers

Definitions

  • the present invention relates to a system for controlling the video signal of any television (for example, CRTs, Liquid Crystal Displays (LCD), Light Emitting Diode (LED), etc.) which includes a transmission unit connected wirelessly (eg, infrared, radio frequency, etc.) to a receiving unit that may be located inside or outside of any device that generates, contains or receives video signals (eg, television, CD player, Digital Video Disc (DVD), video game console, television signal tuner box, etc.), which through a processing unit performs the function of generating a dark video signal to be displayed on the television, achieving with this reduce the consumption of energy of the same and at the same time, give the user control of content of undesirable images.
  • any television for example, CRTs, Liquid Crystal Displays (LCD), Light Emitting Diode (LED), etc.
  • a transmission unit connected wirelessly (eg, infrared, radio frequency, etc.) to a receiving unit that may be located inside or outside of any device that generate
  • the user can activate this function instantaneously at any time that he requires through the remote transmission unit or through the key located in the receiver unit, in addition this function is also activated automatically in a programmed time.
  • the system contains an on-off switch to give the user the option of disabling the system in the specific case of not being integrated as part of the internal circuitry of the video generating device.
  • this control system was designed with few components that can be implemented inside or outside the television, trying to protect it through the present application.
  • Figure 1 is a block diagram of the implementation according to the present invention.
  • Figure 2 is a flow diagram of an example of the programming of the processing unit 2c;
  • Figure 3 is an example of what the implementation of the circuit of the emitter unit 1 according to the present invention means;
  • Figure 4 is an example of what the implementation of the circuit of the control receiving unit 2 according to the present invention means;
  • Figure 5 is an example of a connection diagram of the present invention with a video generating device and television when used as an external device.
  • the image control system of the television by means of the instantaneous generation of dark video signal to reduce the energy consumption of the television and to control the content of undesirable images, has in the internal part of the emitting unit 1 a user interface 1a which is used to receive instructions to instantly activate or deactivate the dark video signal from the television;
  • the user interface 1a includes a key (not shown in the figure) which when pressed generates the input signal 1a1 to which the processing unit 1b, the signal transmitting module 1c, the signal receiving module 2b and the processing unit 2c.
  • the processing unit 1b also contained within the sending unit 1, generates the signal 1b1 when the signal 1a1 is received by the processing unit 1b.
  • the sending unit 1 also contains a signal transmitting module 1c which receives the signal 1b1 generated by the processing unit 1b when the user interface key 1a is pressed; the signal transmitter module 1c is responsible for sending the output signal 1c1 wirelessly to a signal receiving module 2b according to the signal 1b1 coming from the processing unit 1b.
  • This system also has a control receiving unit 2, which internally contains a user interface 2a is used as another means of option to receive instructions by the user to instantly activate or deactivate the dark video signal of the television, this user interface 2a includes a key (not shown in the figure) that when pressed generates the input signal 2a 1 which is sent to a processing unit 2c.
  • the control receiving unit 2 also has a signal receiving module 2b which is mainly responsible for receiving the signals 1c1 sent by the transmitter module 1c to generate a signal 2b1 which is sent to the processing unit 2c.
  • This processing unit 2c is also contained within the control receiving unit 2 and receives from the user interface 2a and the signal receiving module 2b the signals 2a1 and 2b1 respectively to generate, according to the flowchart of the Figure 2, signals 2c1 and 2c2. These generated signals are received by a video signal selector 2d included within the control receiving unit 2 to determine on the basis of the signal 2c1 which of the two signals between 2c2 and 2f1 will be converted to the signal 2d1.
  • the control receiving unit 2 also includes a video signal input module 2e, which receives the signal 3a from any video source 3 (i.e., television, DVD player, television signal tuner box, game console) , etc.) in the form of input signal 2e1.
  • This input signal 2e1 is connected to a switch module 2f contained within the control receiving unit 2 which depending on whether it is in the position P0 or P1 will produce the signal 2f1; when the switch module 2f is in the position P0, the control receiving unit 2 will be off and the signal 2f2 generated by the switch module 2f will be equal to the input signal 2e1; when the switch module 2f is in position P1, the control receiving unit 2 will be on and the signal 2f2 will be the same as the signal 2d1, which could be the same as the signal 2e1 or 2c2 depending on the signal 2c1 coming from of the processing unit 2c.
  • the control receiving unit 2 also contains an output module of the video signal 2g which is responsible for receiving the signal 2f2 from the switch module 2f to form the output signal 2g1.
  • Figure 2 illustrates the flowchart of the software implementation to be programmed in the processing unit 2c so that the signal 2a 1 of the user interface 2a, the signal 2b1 of the signal receiving module 2b and the automatic interruption can generate the signals 2c1 and 2c2 required to obtain the dark video image that will be displayed on the television.
  • the flow passes to the state S2 to evaluate the received signal 2b1; the flow is directed to a decision state S3 by which it is checked whether signal 2b1 received is correct or not; in case it is not correct, the signal 2b1 will have no effect on the process; otherwise, the flow goes to the decision state S5, by which it is checked whether the dark video signal 2c2 has already been generated or not. If the dark video signal 2c2 has not been generated, the stream goes to the S6 state where the automatic activation interrupt to generate the dark video signal 2c2 is turned off; then, the flow goes to the state S7 where the dark video signal 2c2 is generated and the control signal 2c1 is activated.
  • FIG. 3 is shown by way of example the circuit using the emitter unit 1 to instantaneously activate the dark video signal function, already briefly described in the previous Figure 1.
  • the circuit includes current limiting resistors R1, R2 and R3, a key SW1, a capacitor C1, a microcontroller U1, a transistor npn as switch Q1 and an infrared light emitting diode D1.
  • the user interface 1a includes a key SW1 for the instantaneous activation of the dark video signal, the short circuit of this crossing produces a signal 1a1 that will be received by the processing unit 1b.
  • the first end of the resistor R1 is connected to the direct current power source while its second end is connected to 3 points; first, in common connection of terminals 3 and 4 of key SW1 where the short circuit of terminals 1 and 2 are connected to ground; second, to the first terminal of the capacitor C1 that its second end is connected to ground and, thirdly, it connects in the form of the signal 1a1 to the first input of the processing unit 1b containing the microcontroller U1, which is responsible for generating the signal 1b1, through its output eight to be connected to the signal transmitting module 1c.
  • the signal transmitter module 1c includes a resistor R3 which is connected from the first end to the direct current power source and its second end is connected to the anode of the infrared light emitting diode D1 from which the cathode is connected to the collector of the transistor Q1 where the signals emitted by the diode D1 generate the output signal 1c1 of the control emitting unit 1.
  • This module also includes a resistor R2 that is connected at its first end to the generated signal 1b1 and the second end to the base of the transistor Q1 where the emitter is connected to ground.
  • the short circuit of the SW1 key sets the signal 1a1 to a low logic level (0 V, for example); the microcontroller U1 then begins to transmit a coded square 1b1 signal where the values oscillate between high and low logic values (for example, 0.2 V and 2.5 V respectively).
  • the transistor Q1 When the signal 1b1 has a high logic value, the transistor Q1 conducts and allows the infrared light emitting diode D1 to turn on producing the output signal 1c1 of the signal transmitting module 1c; otherwise, when the signal 1b1 has a low logic value, the transistor Q1 opens the circuit causing the infrared light emitting diode D1 to turn off and the output signal 1c1 to be zero; this happens as many times and at the speed as the microcontroller U1 indicates it through its encoded signal 1b1.
  • a suitable choice of the values of the resistors, the infrared light emitting diode and the suitable transistor, will make it possible to control the processing unit 2c (not shown in this figure) to the desired distance.
  • FIG 4 refers to the internal circuit of the control receiving unit 2 that can be implemented to generate the dark video signal and briefly described in Figure 1.
  • Particularly consists of, an infrared receiver module IRM1 , current limiting resistors R4, R5, R6 and R7, RCA female connectors J1 and J2, capacitors C2 and C3, a microcontroller U2, a key SW2, a slide switch SW3 and a video switch U3.
  • the signal 1c1 from the sending unit 1 is received by the infrared receiver module IRM1 contained within the signal receiving module 2b and is responsible for decoding it and then generating the signal 2b1 through its first end.
  • the processing unit 2c contains a microcontroller U2 which receives the signal 2b1 through its first and eighth terminals; the fifth terminal of the microcontroller U2 is connected to the first end of the resistor R6 which connects at its second end to two parts; to the first end of the resistor R7, which connects to ground at its second end, and to the third terminal of the video switch U3 contained within the video signal selector 2d via the dark video signal 2c2.
  • the sixth terminal of the microcontroller U2 is connected to the video signal selector 2d at the first terminal of the video switch U3 via the control signal 2c1.
  • the user interface 2a has an SW2 key as an alternate way to instantaneously activate the dark video signal; shorting this junction causes the processing unit 2c to receive the signal 2a1.
  • the common connection of terminals one and two of the key SW2 are connected to the direct current power supply while its terminals three and four are commonly connected to 3 points; one, to the first end of resistor R4 that its second end connects to ground two, to the first end of capacitor C2, where it also connects to ground at its second end and three, to the seventh terminal of microcontroller U2 through the generated signal 2a1 through the user interface 2a.
  • the video signal input module 2e contains a female RCA connector J1 that is responsible for receiving the signal 3a that comes from the video source 3 through the common connection of terminals one and three while its second terminal is connected to Earth.
  • the signal 3a received by the female RCA connector J1 is the same signal 2e1 that connects to the third terminal of the slide switch SW3 contained within the switch module 2f.
  • the first end of the slide switch SW3 is connected to the video signal selector 2d on the second terminal of the video switch U3 via the signal 2f1; the fourth and fifth ends of the switch Slidable SW3 are commonly connected while its sixth terminal is the output signal 2f2 and the eighth terminal receives signal 2d1 from the fourth terminal of the video switch U3.
  • the output signal 2f2 of the slide switch SW3 is connected to the commonly connected terminals one and three of the female RCA connector J2 contained within the video signal module 2g and forms the output signal 2g1, while the second terminal is connected to ground .
  • the dark video signal generated for the television consists of a digital signal modulated by pulse width with a fixed period of approximately 64 us and a duty cycle of approximately 4 us.
  • a color video signal has a voltage value between 0.3 V and 1 V where generally a value of 0.3 V corresponds to a black color and 1 V corresponds to the color white, so the signal 2c2 of video generated by the microcontroller U2 it must have a voltage value within this range to generate a color.
  • This voltage can be adjusted with any voltage regulator, in this case, the amplitude of the dark video signal 2c2 is regulated to a value of 0.3 V with the resistors R6 and R7 connected as a voltage divider where the resistance R7 has a value of 75 ⁇ for coupling the impedance of the control receiving unit 2 with the standard value of the impedance of the television video input.
  • the resistance R6 has a value of 75 ⁇ for coupling the impedance of the control receiving unit 2 with the standard value of the impedance of the television video input.
  • a suitable choice of the value of the resistance R6 will allow the wanted dark video signal 2c2 to be displayed on the television.
  • the processing unit 2c remains in a low power consumption mode until the moment in which any of these three events just mentioned occurs, causing the processing unit 2c to enter the active mode and execute the tasks assigned in the software implementation of the flow diagram described previously in Figure 2 and, once its tasks returns to the low power mode to await a new event.
  • the processing unit 2c When the processing unit 2c receives the signal 2b1 it checks whether it corresponds to the signal 1c1 that is sent by the sending unit 1 and if it is interpreted as a correct signal, if it corresponds to a different signal then it is read as an incorrect signal. When the activation of a correct signal 2b1 arises or the signal 2a1 has a high logic value, the processing unit 2c generates, if not yet generated, the dark video signal 2c2 and establishes the control signal 2c 1 in a high logic level (on) or set signals 2c1 and 2c2 to a low logic level (off) if the dark video signal 2c2 has already been generated.
  • the output signal 2d1 of the selector switch 2d is equal to the signal 2f1, which is the same as the input signal 2e1 of the video source 3; if the signal 2c1 is set to a high logic value, the selector switch 2d selects the dark video signal 2c2 as its output signal 2d1. If the slide switch SW3 is in position P0 the direct current power supply is equal to 0 V and the output signal 2g1 is the same as the video input signal 2e1; conversely, if the slide switch SW3 is in the P1 position, the direct current voltage source is + 3 V and the output signal 2g1 is given by the output signal 2d1 of the selector switch 2d.
  • FIG 5 an example of the interaction diagram of the control receiving unit 2 is shown when being connected through the video input module 2e to the output of some video signal source 3, for example, a DVD player or a television channel tuner, and the video signal output 2g to the video input of a television 4.
  • the broadcast unit 1 is used to indicate wirelessly whether the video input of the television 4 is going to receive the dark video signal generated by the control receiving unit 2 or will receive the signal coming from the video signal source 3, although this can also be selected through the user interface 2a located in the control receiving unit 2.
  • the input of video of the TV 4 will receive the signal according to the position of the selector switch 2f already described above with reference in Figure 4.
  • the control receiving unit 2 can also be implemented within any device serving as a video source 3 in any part of its internal video circuitry such as a television, a DVD player, a video game console, a tuner of television channels, etc.
  • the female RCA connectors J1 and J2 are eliminated together with the sliding switch SW3 including its interconnections and the following assembly is performed.
  • the control receiving unit 2 will be connected as a bypass, opening the circuit of the device to which this system will be implemented in the part of the video signal output and in this open circuit connect in series the signal 2f1 of the receiving unit control 2 and close the circuit by connecting the signal 2d1 leaving the video switch U3.
  • the output signal 2d1 will depend solely on the logic level of the controlling signal 2c1 from the processing unit 2c; when the controller signal 2c1 has a low logic level, the output signal 2d1 is equal to the input signal 2f1 coming from the video source 3; when the controller signal 2c 1 has a high logic level, the output signal 2d1 is equal to the dark video signal 2c2 generated by the processing unit 2c.
  • the circuit of the control receiving unit 2 must be powered by any direct current source of +3 V that is available within the device to which this control system will be implemented.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)

Abstract

L'invention concerne un système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur afin de réduire la consommation d'énergie et de garder le contrôle des images indésirables. Le système décrit dans la présente invention consiste en un système comprenant principalement deux unités, une unité émettrice (1) et une unité réceptrice de contrôle (2). L'unité réceptrice de contrôle comprend une unité de traitement (2c) et un sélecteur de signal vidéo (2d). Dans un mode non fonctionnel, l'unité réceptrice de contrôle permet la sortie du signal d'entrée de la source vidéo (3) et attend une instruction de commutation de l'unité émettrice, par l'intermédiaire de l'interface utilisateur (2a) ou par l'intermédiaire d'une interruption automatique programmée. Dans un mode fonctionnel, l'unité réceptrice de contrôle génère un signal vidéo obscur par l'intermédiaire de l'unité de traitement et envoie le signal de commutation au sélecteur de signal vidéo afin qu'il permette sa sortie, permettant ainsi au téléviseur de diffuser une image obscure sans altérer le signal sonore.
PCT/MX2010/000052 2010-06-07 2010-06-07 Système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur WO2011155812A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/MX2010/000052 WO2011155812A1 (fr) 2010-06-07 2010-06-07 Système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur
US13/261,368 US20120293720A1 (en) 2010-06-07 2010-06-07 Tv image control system via instantaneous generation of a black signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2010/000052 WO2011155812A1 (fr) 2010-06-07 2010-06-07 Système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur

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WO2011155812A1 true WO2011155812A1 (fr) 2011-12-15

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PCT/MX2010/000052 WO2011155812A1 (fr) 2010-06-07 2010-06-07 Système de contrôle de l'image d'un téléviseur par génération instantanée d'un signal vidéo obscur

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WO (1) WO2011155812A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130272713A1 (en) * 2012-04-12 2013-10-17 Hon Hai Precision Industry Co., Ltd. Signal processing circuit

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH07107405A (ja) * 1993-10-07 1995-04-21 Hitachi Ltd テレビジョン受像機
EP0750420A2 (fr) * 1995-09-27 1996-12-27 Mario Samarughi Système de supervision de la visualisation d'images de télévision par la génération, au moyen de la télécommande, de signaux pour la suppression ou la perturbation du signal vidéo, en laissant le signal audio actif
US6441868B1 (en) * 1997-11-17 2002-08-27 Samsung Electronics Co., Ltd. Image reproducing apparatus having a screen blanking function and a screen blanking method using the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994030008A1 (fr) * 1993-06-07 1994-12-22 Scientific-Atlanta, Inc. Systeme d'affichage pour poste de television d'abonne
US9135811B2 (en) * 2001-09-27 2015-09-15 Universal Electronics Inc. Two way communication between an appliance and a remote control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07107405A (ja) * 1993-10-07 1995-04-21 Hitachi Ltd テレビジョン受像機
EP0750420A2 (fr) * 1995-09-27 1996-12-27 Mario Samarughi Système de supervision de la visualisation d'images de télévision par la génération, au moyen de la télécommande, de signaux pour la suppression ou la perturbation du signal vidéo, en laissant le signal audio actif
US6441868B1 (en) * 1997-11-17 2002-08-27 Samsung Electronics Co., Ltd. Image reproducing apparatus having a screen blanking function and a screen blanking method using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130272713A1 (en) * 2012-04-12 2013-10-17 Hon Hai Precision Industry Co., Ltd. Signal processing circuit

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